DPF载体结构对非道路柴油机再生性能影响的试验研究

Experimental Study on the Effect of DPF Carrier Structure on Regeneration Performance of Non-road Diesel Engine

非道路柴油机对加装壁流式颗粒物捕集器(DPF)降低发动机排气污染物中的颗粒物和粒子数量做出了明确要求。DPF对降低柴油机颗粒物排放起到决定性的作用,同时其不同材料载体和孔壁厚度又对发动机排气阻力、油耗、再生性能、DTI超温风险以及可靠性产生影响。因此,DPF必须尽可能降低排气阻力,提高再生性能与捕集效率,以利于发动机油耗和排放降低。本文就DPF载体结构对柴油机的影响进行深入分析研究。

The addition of DPF to the non-road diesel engine makes a clear request to reduce the particulate matter and particle quantity in the exhaust pollutant of the engine.DPF plays a decisive role in reducing particulate matter emissions of diesel engines,and its different material carriers and hole wall thickness have an impact on engine exhaust resistance,fuel consumption,regeneration performance,DTI overtemperature risk and reliability.Therefore,DPF must reduce exhaust resistance as much as possible,improve regeneration performance and capture efficiency,so as to reduce engine fuel consumption and emissions.In this paper,the influence of DPF carrier structure on diesel engine is deeply analyzed and studied.